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				https://github.com/searxng/searxng.git
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			130 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			130 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""
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 Gigablast (Web)
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 @website     https://gigablast.com
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 @provide-api yes (https://gigablast.com/api.html)
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 @using-api   yes
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 @results     XML
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 @stable      yes
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 @parse       url, title, content
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"""
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import random
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from json import loads
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from time import time
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from lxml.html import fromstring
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from searx.poolrequests import get
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from searx.url_utils import urlencode
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from searx.utils import eval_xpath
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# engine dependent config
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categories = ['general']
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paging = True
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number_of_results = 10
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language_support = True
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safesearch = True
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# search-url
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base_url = 'https://gigablast.com/'
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search_string = 'search?{query}'\
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    '&n={number_of_results}'\
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    '&c=main'\
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    '&s={offset}'\
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    '&format=json'\
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    '&langcountry={lang}'\
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    '&ff={safesearch}'\
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    '&rand={rxikd}'
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# specific xpath variables
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results_xpath = '//response//result'
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url_xpath = './/url'
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title_xpath = './/title'
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content_xpath = './/sum'
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supported_languages_url = 'https://gigablast.com/search?&rxikd=1'
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extra_param = ''  # gigablast requires a random extra parameter
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# which can be extracted from the source code of the search page
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def parse_extra_param(text):
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    global extra_param
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    param_lines = [x for x in text.splitlines() if x.startswith('var url=') or x.startswith('url=url+')]
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    extra_param = ''
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    for l in param_lines:
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        extra_param += l.split("'")[1]
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    extra_param = extra_param.split('&')[-1]
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def init(engine_settings=None):
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    parse_extra_param(get('http://gigablast.com/search?c=main&qlangcountry=en-us&q=south&s=10').text)
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# do search-request
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def request(query, params):
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    print("EXTRAPARAM:", extra_param)
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    offset = (params['pageno'] - 1) * number_of_results
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    if params['language'] == 'all':
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        language = 'xx'
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    else:
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        language = params['language'].replace('-', '_').lower()
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        if language.split('-')[0] != 'zh':
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            language = language.split('-')[0]
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    if params['safesearch'] >= 1:
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        safesearch = 1
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    else:
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        safesearch = 0
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    # rxieu is some kind of hash from the search query, but accepts random atm
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    search_path = search_string.format(query=urlencode({'q': query}),
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                                       offset=offset,
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                                       number_of_results=number_of_results,
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                                       lang=language,
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                                       rxikd=int(time() * 1000),
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                                       safesearch=safesearch)
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    params['url'] = base_url + search_path + '&' + extra_param
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    return params
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# get response from search-request
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def response(resp):
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    results = []
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    # parse results
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    try:
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        response_json = loads(resp.text)
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    except:
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        parse_extra_param(resp.text)
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        raise Exception('extra param expired, please reload')
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    for result in response_json['results']:
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        # append result
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        results.append({'url': result['url'],
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                        'title': result['title'],
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                        'content': result['sum']})
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    # return results
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    return results
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# get supported languages from their site
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def _fetch_supported_languages(resp):
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    supported_languages = []
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    dom = fromstring(resp.text)
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    links = eval_xpath(dom, '//span[@id="menu2"]/a')
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    for link in links:
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        href = eval_xpath(link, './@href')[0].split('lang%3A')
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        if len(href) == 2:
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            code = href[1].split('_')
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            if len(code) == 2:
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                code = code[0] + '-' + code[1].upper()
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            else:
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                code = code[0]
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            supported_languages.append(code)
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    return supported_languages
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